Slow Cooker 5-Ingredient Pizza Pasta Casserole: The Easiest Family-Favorite Dinner Made Effortless

If you love the crowd-pleasing flavors of pizza but want a dinner that practically makes itself, this Slow Cooker 5-Ingredient Pizza Pasta Casserole is exactly what you need. Tender pasta, savory ground beef, pepperoni, and melty cheese simmered together in a rich tomato sauce—this is the kind of simple slow-cooker trick a practical home cook keeps in her apron pocket for busy weeknights, family gatherings, and cozy weekend suppers.

Whether you’re feeding a hungry family, bringing a dish to a church supper, or simply craving a warm, satisfying meal on a chilly evening, this easy pizza pasta casserole recipe checks every box. It’s budget-friendly, freezer-friendly, and endlessly customizable—the kind of recipe a practical home cook keeps in her back pocket for busy weeknights and cozy weekends.

Why You’ll Love This 5-Ingredient Pizza Pasta Casserole Recipe

The beauty of this recipe is its simplicity. You don’t need a long list of ingredients or a stack of pans—just five everyday components and a few minutes of prep. The slow cooker transforms basic ingredients into a rich, flavorful pasta dish that tastes like a beloved pizza-night specialty.

It’s also incredibly versatile. Serve it as a hearty main dish with garlic bread, bring it to a potluck, or pack the leftovers for lunch. The casserole reheats beautifully, and it freezes well for future dinners.

Ingredients

• 12 oz uncooked rotini or penne pasta

• 1 lb ground beef

• 1 jar (24 oz) pizza or marinara sauce

• 1 cup sliced pepperoni

• 2 cups shredded mozzarella cheese

Optional add-ins: 1 diced onion, 1 teaspoon Italian seasoning, a pinch of red pepper flakes, and grated Parmesan for serving.

Directions

1. Lightly grease the insert of a slow cooker.

2. In a skillet over medium-high heat, brown the ground beef until no longer pink; drain excess fat.

3. Transfer the beef to the slow cooker and stir in the pizza sauce, pepperoni, and 1 1/2 cups of water (and onion, Italian seasoning, and red pepper flakes, if using) until combined.

4. Add the uncooked pasta, stirring gently to coat evenly.

5. Cover and cook on LOW for 3 to 4 hours (or on HIGH for 1 1/2 to 2 hours), stirring once about halfway through, until the pasta is tender.

6. Sprinkle the mozzarella over the top during the last 15 minutes of cooking, cover, and let melt. Serve warm with grated Parmesan.

Serving Ideas

This casserole is lovely served with garlic bread, a crisp side salad, or steamed green beans for a cozy, complete plate. A sprinkle of fresh basil or grated Parmesan at the table makes it feel fit for company, and a pinch of red pepper flakes adds a nice kick.

Variations & Tips

• Meat Swap: Italian sausage or shredded chicken works beautifully in place of ground beef.

• Pasta Tip: Stir once halfway through cooking to prevent the pasta from sticking together.

• Add-Ins: A handful of sliced mushrooms, diced bell peppers, or black olives stirred in with the sauce adds extra pizza-style flavor.

• Storage: Cover leftovers tightly and refrigerate up to 4 days, or freeze up to 3 months; reheat with a splash of sauce to keep it moist.

Conclusion: Slow Cooker 5-Ingredient Pizza Pasta Casserole

This is the sort of recipe that earns a permanent spot in the weeknight rotation—five ingredients, one pot, and a cheesy, crowd-pleasing pasta that tastes like you fussed far more than you did. The savory beef, pepperoni, and melty mozzarella make it hearty enough for a hungry family yet easy enough for an ordinary Tuesday, and because the slow cooker does the work, you get to sit down to a homemade meal with hardly any cleanup. Keep it in your back pocket for busy weekends, pizza-night cravings, and those times when you want something cozy and satisfying without pulling half the pantry onto the counter—and enjoy the fact that the leftovers taste just as good the next day.